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Finding the Third Proportional to 78,348 and 117,697

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Solution

The third proportional to 78,348 and 117,697 is: 176,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,348 : 117,697 = 117,697 : x
  2. Step 2: Convert to fraction form
    78,348/117,697 = 117,697/x
  3. Step 3: Cross multiply
    78,348x = 117,697 × 117,697
  4. Step 4: Simplify right side
    78,348x = 13,852,583,809
  5. Step 5: Solve for x
    x = 13,852,583,809/78,348
  6. Step 6: Final answer
    x = 176,808.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.